Home / 10,171.50-14,036.70-5,979.78

Finding the Fourth Proportional to 10,171.50, 14,036.70 and 5,979.78

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Solution

The fourth proportional to 10,171.50, 14,036.70 and 5,979.78 is: 8,252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,171.50 : 14,036.70 = 5,979.78 : x
  2. Step 2: Convert to fraction form
    10,171.50/14,036.70 = 5,979.78/x
  3. Step 3: Cross multiply
    10,171.50x = 14,036.70 × 5,979.78
  4. Step 4: Simplify right side
    10,171.50x = 83,936,377.93
  5. Step 5: Solve for x
    x = 83,936,377.93/10,171.50
  6. Step 6: Final answer
    x = 8,252.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.